The present technology is generally related to vacuum elevator components, and more specifically to elevator cabin guides for controlling displacement of elevator cabins.
Elevators are typically used to transport people and goods between two or more floor levels of a building, house, ship, etc. Elevators may comprise a cabin (i.e., car) that is generally used to transport the people and goods between floors. When the cabin is put in motion, the cabin travels within an unobstructed space. The unobstructed space may be referred to as elevator well. The elevator well and the cabin may comprise one or more elements of the elevator system, e.g., depending on the type of elevator. Some types of elevators include traction elevators, hydraulic elevators, and vacuum elevators. Traction elevators require the use of cables, motors, weights, etc. Hydraulic elevators require the use of complex hydraulic systems including pistons, hydraulic fluid, hydraulic pumps, etc. Generally, vacuum elevators do not require the complexity of traction and hydraulic elevators.
More specifically, a vacuum elevator may have a cabin that travels up and down an outer structure using rails and guides. To move the cabin upwards, a vacuum system is used. The vacuum system extracts air from the unobstructed space above the cabin, thereby creating a vacuum or a low pressure space. The difference between the pressure of air above the cabin and the pressure of air below the cabin forces the elevator to move upwards. Typically, the downwards movement of the vacuum elevator relies on gravity (i.e., without the use of the vacuum system). To create the suction, the elevator (e.g., comprising the unobstructed space and cabin) is sealed to prevent air leaks.
For vacuum elevators, it is important to limit the cabin movement to vertical movement. Cabin movement other than vertical (e.g., side to side) may result in air leaks around the cabin, a rugged feel during when the cabin is ascending or descending, etc.
Some embodiments provide a cabin guide assembly, which may be coupled to one or more cabin columns. The cabin guide assembly may be arranged to keep the cabin on a predetermined path during its movement within the elevator (e.g., or in a location when the cabin is not vertically moving). One or more embodiments are beneficial at least because safety of the elevator is improved (e.g., when compared to conventional systems). Further, the cabin guide assembly may keep the cabin aligned and stable, thereby providing a smooth ride.
In one or more embodiments, an elevator comprises a plurality of elevator columns (e.g., four elevator columns). Further, the cabin may comprise cabin columns (e.g., dual cabin columns). Each cabin column may comprise one or more cabin guide assemblies, such as one positioned towards the top of the cabin column and the other towards the bottom. In some embodiments, the cabin comprises eight elevator guide assemblies. Each of the elevator guide assemblies may help maintain the cabin aligned and stable in the elevator.
In one aspect, the present disclosure provides a cabin guide assembly. The cabin guide assembly includes a material layer that has a first material layer surface and a guide that has a first guide surface and a second guide surface opposite the first guide surface. The second guide surface is coupled to the first material layer surface. The cabin guide assembly further includes a base coupled to at least a portion of the first guide surface and one or more adjustment members coupled to the base and arranged to exert an adjustable force against the guide and the material layer.
In another aspect, the disclosure provides a cabin guide assembly. The cabin guide assembly includes a material layer, a guide, a base, a support plate, and one or more adjustment members. The material layer has a first material layer surface. The guide has a first guide surface and a second guide surface opposite the first guide surface. The second guide surface is coupled to the first material layer surface. The base is coupled to at least a portion of the first guide surface and includes one or more base openings. The support plate has one or more support plate openings. The one or more adjustment members are inserted through a corresponding base opening and a corresponding support plate opening. The one or more adjustment members is coupled to the base and arranged to exert an adjustable force against the guide and the material layer.
In one aspect, the disclosure provides an elevator comprising an elevator structure, a cabin, and a plurality of cabin guide assemblies. The elevator structure includes a plurality of elevator columns, where each elevator column of the plurality of elevator columns includes a column rail. The cabin is movable within the elevator structure. Each cabin guide assembly of the plurality of cabin guide assemblies is coupled to the cabin and includes a material layer, a guide, a base, a support plate, and one or more adjustment members. The material layer has a first material layer surface and a second material layer surface opposite the first material layer surface. The second material layer surface is arranged to contact receive and contact a corresponding column rail. The guide has a first guide surface and a second guide surface opposite the first guide surface, where the second guide surface is coupled to the first material layer surface. The base is coupled to at least a portion of the first guide surface and includes one or more base openings. The support plate is coupled to the cabin and has one or more support plate openings. The one or more adjustment members are inserted through a corresponding base opening and a corresponding support plate opening. The one or more adjustment members are coupled to the base and arranged to exert an adjustable force against the guide and the material layer. At least a portion of the second material layer surface contacts and presses against the corresponding column rail when the adjustable force is exerted.
The details of one or more aspects of the disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the techniques described in this disclosure will be apparent from the description and drawings, and from the claims.
A more complete understanding of the present invention, and the attendant advantages and features thereof, will be more readily understood by reference to the following detailed description when considered in conjunction with the accompanying drawings wherein:
Before describing in detail exemplary embodiments, it is noted that the embodiments reside primarily in combinations of apparatus components and processing steps related to an adjustable seal (e.g., elevator cabin seal). Accordingly, components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein. Like numbers refer to like elements throughout the description.
As used herein, relational terms, such as “first” and “second,” “top” and “bottom,” and the like, may be used solely to distinguish one entity or element from another entity or element without necessarily requiring or implying any physical or logical relationship or order between such entities or elements. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the concepts described herein. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes” and/or “including” when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In some embodiments described herein, the term “coupled,” “connected,” “attached” and the like, may be used herein to indicate a coupling of two or more elements or components, although not necessarily directly. It should be understood that various aspects disclosed herein may be combined in different combinations than the combinations specifically presented in the description and accompanying drawings. It should also be understood that, depending on the example, certain acts or events of any of the processes or methods described herein may be performed in a different sequence, may be added, merged, or left out altogether (e.g., all described acts or events may not be necessary to carry out the techniques). In addition, while certain aspects of this disclosure are described as being performed by a single module or unit for purposes of clarity, it should be understood that the techniques of this disclosure may be performed by a combination of units or modules associated with, for example, an elevator.
Referring now to the drawing figures in which like reference designators refer to like elements,
First and second floor sensors 30, 32 are configured to detect that cabin 14 has reached the first and the second floors, respectively. First and second floor doors 26, 28 are coupled (e.g., sealed to) elevator walls 12 and arranged to open to allow elevator passengers to enter and exit cabin 14, and to close to operate cabin 14 (e.g., ascend, descend). In some embodiments, elevator 10 and elevator walls 12 (and/or cabin 14, and/or first and second floor doors 26, 28) are cylindrical. However, elevator 10 (and/or any of its components) are not limited as such and may have any shape. In some embodiments, elevator 10 includes an elevator structure 40 (i.e., a plurality of elevator columns) arranged to structurally support elevator 10, e.g., columns are arranged to provide lateral, vertical support, gravity support, etc. elevator structure 40 may be arranged to provide a guiding function to cabin 14 such as to guide the vertical movement of cabin 14. In some embodiments, elevator structure 40 may be coupled to elevator walls 12. Further, elevator 10 may include at least a cabin guide assembly 100 comprised in cabin 14 and arranged to contact and/or press against at least one component of elevator structure 40 (e.g., elevator columns and/or other elevator structure components). For example, cabin guide assembly 100 may be coupled to cabin 14 (e.g., and/or a component of cabin 14) and arranged to contact and/or press against elevator structure 40 (and/or a component of elevator structure 40) to guide cabin 14 such as during ascent, descent, or static operation.
In some embodiments, material layer 118 is a U-shaped carpet, which is inserted into guide 116. Guide 116 is a U-shaped steel frame. Nuts 114a, 114b are locknuts on either side of the cabin guide assembly 100 and are used to firmly tighten the bolts 102a, 102b into place. In some other embodiments, two bolt plates 112 (e.g., screw plates) are on each side of the cabin guide assembly 100. Bolt plates 112 (on each side) have a bolt plate opening 119 (e.g., centered hole), where the bolt 102 is inserted, and serve as support for the tightening functionality of nuts 121. In some embodiments, bolt plates 112 allow springs 110 to add tension to the piece, such as by securing cabin guide assembly 100 into the elevator column 42 of the elevator 10. In some embodiments, base 108 is a square-like U-shaped base arranged to bring components together, such as by allowing cabin guide assembly 100 to function as a single part. In some other embodiments, support plate 106 is a rear support plate, i.e., positioned behind the base 108. Support plate 106 may be arranged to couple to a cabin column 50 such as using bolts 102. Washers 104 are used on the bolts (e.g., between the bolt head and support plate 106, between first spring end 115 and base surface, between second spring end 117 and a bolt plate 112, between bolt plates 112, between a bolt plate 112 and nut 114, etc.). Washers 104 may be arranged to prevent damage such as to support plate surface or any other surface/component. Although two bolts 102, two washers 104, four bolt plates 112, two nuts 114, etc. are shown, the present disclosure is not limited as such, i.e., cabin guide assembly 100 may comprise any quantity of each component. Although bolts 102 are described, it is understood that other forms of adjustable fasteners, whether threaded or unthreaded, can be used in place of bolts 102 and nuts 114.
In some other embodiments, base end 124 and guide end 126 may be arranged to couple to each other. In some embodiments, base end 124 and guide end 126 may be arranged to releasably couple to each other. In some other embodiments, base end 124 and guide end 126 may be a single unitary construction such as integrated, welded, formed, etc. In a nonlimiting example, base end 124a is coupled to guide end 126a (e.g., the coupling is a weld), and base end 124b is coupled to guide end 126b (e.g., the coupling is a weld). In some other embodiments, material layer 118 is bonded to guide 116 such as by using an adhesive.
In some embodiments, bolts 102a, 102b are fastened such as by tightening nuts 114a, 114b, respectively. Bolts 102a, 102b are spring loaded by springs 110a, 110b, i.e., bolts 102a, 102b are each positioned in spring interiors 113a, 113b, respectively. First spring ends 115a, 115b are in contact with washers 104a, 104b, respectively, and second spring ends 117a, 117b are in contact with bolt plates 112a, 112b, respectively. That is, spring 110a is compressed in between the washer 104a and bolt plate 112a. Similarly, spring 110b is compressed in between the washer 104b and bolt plate 112b. Bolt plates 112 are coupled to base 108. In some embodiments, bolt plates 112 are welded to base 108. As each spring 110 pushes against the corresponding bolt plate 112 (and washer 104), tension is provided to push the base 108 (and/or guide 116 and/or material layer 118) into the corresponding elevator column 42 (and/or column rail 130 (shown in
In some other embodiments, material layer 118 is a U-shaped resilient fabric/material such as carpet that is affixed to guide 116 that is a U-shaped frame. Bolt plates 112a, 112c (and 112b, 112d) are welded onto either side the square-like U-shaped base 108 (e.g., at plate coupler portions 120, base interior coupler portions 122, base end 124, and guide end 126). In some embodiments, guide 116 and material layer 118 are arranged as a unitary construction such as a unified U-shaped carpet with its steel base. The unitary construction is then welded onto the square-like U-shaped base 108.
In some embodiments, cabin guide assembly 100 includes a U-shaped piece (i.e., guide 116 (and material layer 118 such as a carpet)) that firmly hugs the column rail. The U-shape provides stability to the cabin such as during ascent and descent, e.g., by absorbing energy transferred by cabin movement. Base 108 may be a square-like U-shaped base that serves as a foundation for cabin guide assembly 100, e.g., used to attach cabin guide assembly 100 to cabin column 50. Support plate 106 is mounted onto base 108 through cabin column 50 (via column plate 142) using spring-loaded bolts 102. These spring-loaded bolts 102 create tension on two internal plates which serves to push the U-shaped guide 116 as much as possible onto column rail 130. A firm embrace of cabin guide assembly 100 on column rail 130 results in smoother transport of the cabin 14 in the elevator 10 (when compared to conventional systems). A nut 114 (e.g., locknut) is used for both bolts 102 to maintain a secure fastening and prevent any loosening when the piece is exposed to the natural vibration and movement of the cabin 14 in the elevator 10.
In some embodiments, any of the components (or characteristics of the components) of cabin guide assembly 100 may be determined or modified to provide one or more functions described herein. In a nonlimiting example, bolts may have a size m4×38 millimeters (mm). The bolts 102 have respective washers 104 may have a thickness of 1 mm. Springs 110 may have an interior diameter of 4 mm used to create tension against the base 108. This tension serves to impose the material layer 118 (U-shaped carpet) as much as possible into column rail 130. The carpet may have a thickness of 4 mm. The U-shape may form an interior radius of 9 mm and an outer radius of 13 mm. Bolts 102 and compression springs 110 may travel through openings (7 mm) in support plate 106 and through an additional opening in the square-like U-shaped base 108 with a diameter of 13 mm. This spring and bolt encounter bolt plates 112, which may be welded to the sides of the square-like U-shaped base 108. The bolt plates 112 may share the same length and thickness (e.g., 2 mm) and have a centered opening with an 8 mm diameter. Bolt plates 112a, 112b may serve as a support surface for the compression springs 110a, 110b. The two upper bolt plates 112c, 112d may create a platform for the purpose of tightening the bolts 102a, 102b using nuts 114a, 114b. Although example characteristics of the components have been provided, the present disclosure is not limited as such, and any other characteristics may be applicable.
It will be appreciated by persons skilled in the art that the present invention is not limited to what has been particularly shown and described herein above. In addition, unless mention was made above to the contrary, it should be noted that all of the accompanying drawings are not to scale. A variety of modifications and variations are possible in light of the above teachings without departing from the scope and spirit of the invention, which is limited only by the following claims.
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